Series.str.lstrip() ⚬ Entries

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Series.str.lstrip() ⚬｜Documentation｜1st｜20251021193338-00-⌔

pandas.Series.str.lstrip — pandas documentation#pandas.Series.str.lstrip

Series.str.lstrip(to_strip=None)

Remove leading characters.

Strip whitespaces (including newlines) or a set of specified characters from each string in the Series/Index from left side. Replaces any non-strings in Series with NaNs. Equivalent to str.lstrip().

Parameters:

to_strip: str or None, default None

Specifying the set of characters to be removed. All combinations of this set of characters will be stripped. If None then whitespaces are removed.

Returns:

Series or Index of object

Series or Index with the strings being stripped from the left side.

See also:

Series.str.strip

Remove leading and trailing characters in Series/Index.

Series.str.lstrip

Remove leading characters in Series/Index.

Series.str.rstrip

Remove trailing characters in Series/Index.

Examples:

>>> s = pd.Series(["1. Ant.  ", "2. Bee!\n", "3. Cat?\t", np.nan, 10, True])
>>> s
0    1. Ant.
1    2. Bee!\n
2    3. Cat?\t
3          NaN
4           10
5         True
dtype: object

>>> s.str.strip()
0    1. Ant.
1    2. Bee!
2    3. Cat?
3        NaN
4        NaN
5        NaN
dtype: object

>>> s.str.lstrip("123.")
0    Ant.
1    Bee!\n
2    Cat?\t
3       NaN
4       NaN
5       NaN
dtype: object

>>> s.str.rstrip(".!? \n\t")
0    1. Ant
1    2. Bee
2    3. Cat
3       NaN
4       NaN
5       NaN
dtype: object

>>> s.str.strip("123.!? \n\t")
0    Ant
1    Bee
2    Cat
3    NaN
4    NaN
5    NaN
dtype: object

Printed 2026-06-28.

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